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124 lines
2.1 KiB
124 lines
2.1 KiB
20 years ago
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/*
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* arch/ppc/syslib/mv64x60_dbg.c
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*
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* KGDB and progress routines for the Marvell/Galileo MV64x60 (Discovery).
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*
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* Author: Mark A. Greer <mgreer@mvista.com>
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*
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* 2003 (c) MontaVista Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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/*
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*****************************************************************************
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*
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* Low-level MPSC/UART I/O routines
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*
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*****************************************************************************
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*/
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#include <linux/config.h>
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#include <linux/irq.h>
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#include <asm/delay.h>
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#include <asm/mv64x60.h>
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#if defined(CONFIG_SERIAL_TEXT_DEBUG)
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#define MPSC_CHR_1 0x000c
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#define MPSC_CHR_2 0x0010
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static struct mv64x60_handle mv64x60_dbg_bh;
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void
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mv64x60_progress_init(u32 base)
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{
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mv64x60_dbg_bh.v_base = base;
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return;
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}
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static void
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mv64x60_polled_putc(int chan, char c)
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{
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u32 offset;
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if (chan == 0)
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offset = 0x8000;
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else
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offset = 0x9000;
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mv64x60_write(&mv64x60_dbg_bh, offset + MPSC_CHR_1, (u32)c);
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mv64x60_write(&mv64x60_dbg_bh, offset + MPSC_CHR_2, 0x200);
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udelay(2000);
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}
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void
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mv64x60_mpsc_progress(char *s, unsigned short hex)
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{
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volatile char c;
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mv64x60_polled_putc(0, '\r');
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while ((c = *s++) != 0)
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mv64x60_polled_putc(0, c);
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mv64x60_polled_putc(0, '\n');
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mv64x60_polled_putc(0, '\r');
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return;
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}
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#endif /* CONFIG_SERIAL_TEXT_DEBUG */
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#if defined(CONFIG_KGDB)
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#if defined(CONFIG_KGDB_TTYS0)
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#define KGDB_PORT 0
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#elif defined(CONFIG_KGDB_TTYS1)
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#define KGDB_PORT 1
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#else
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#error "Invalid kgdb_tty port"
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#endif
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void
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putDebugChar(unsigned char c)
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{
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mv64x60_polled_putc(KGDB_PORT, (char)c);
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}
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int
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getDebugChar(void)
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{
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unsigned char c;
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while (!mv64x60_polled_getc(KGDB_PORT, &c));
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return (int)c;
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}
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void
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putDebugString(char* str)
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{
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while (*str != '\0') {
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putDebugChar(*str);
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str++;
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}
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putDebugChar('\r');
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return;
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}
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void
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kgdb_interruptible(int enable)
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{
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}
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void
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kgdb_map_scc(void)
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{
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if (ppc_md.early_serial_map)
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ppc_md.early_serial_map();
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}
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#endif /* CONFIG_KGDB */
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